Skyrmionic LEGO- entangled skyrmion networks in chiral magnets and liquid crystals
| Project/Area Number |
21K03406
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 13010:Mathematical physics and fundamental theory of condensed matter physics-related
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| Research Institution | Hiroshima University |
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Principal Investigator |
LEONOV ANDRIY 広島大学, 先進理工系科学研究科(理), 准教授 (30804851)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Project Status |
Completed (Fiscal Year 2023)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | skyrmion / hopfion / bimeron / DMI / Cu2OSeO3 / tilted spiral / A-phase / chiral magnets / neutron scattering / cone / spiral / liquid crystals / chirality |
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| Outline of Research at the Start |
The aim of the project is by experimental and theoretical means to introduce different classes of oblique non-axisymmetric skyrmions and elucidate the principles of their meshing into a large diversity of extended three-dimensional skyrmionic networks in chiral magnets and liquid crystals.
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| Outline of Annual Research Achievements |
Novel classes of multidimensional chiral solitons were theoretically studied in chiral magnets and liquid crystals. Among the found solitons are: 1) torons and bobbers in thin layers of liquid crystals; 2) target-skyrmions and springs in bulk chiral magnets; 3) non-axisymmetric vertical and horizontal skyrmions within the conical states of chiral magnets; 4) two-dimensional merons of easy-axis and easy-plane varieties; 5) three-dimensional knotted hopfions in bulk helimagnets. A systematic study of the stability and ordering of low-temperature skyrmion and spiral states was undertaken in a bulk helimagnet Cu2OSeO3 through the use of versatile indirect techniques such as neutron scattering, magnetization and ac magnetic susceptibility measurements.
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Report
(3 results)
Research Products
(16 results)
